CVE-2012-0885 Information

Description

chan_sip.c in Asterisk Open Source 1.8.x before 1.8.8.2 and 10.x before 10.0.1 when the res_srtp module is used and media support is improperly configured allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted SDP message with a crypto attribute and a (1) video or (2) text media type as demonstrated by CSipSimple.

Reference

http://downloads.asterisk.org/pub/security/AST-2012-001.html http://downloads.asterisk.org/pub/security/AST-2012-001-1.8.diff http://downloads.asterisk.org/pub/security/AST-2012-001-10.diff http://www.openwall.com/lists/oss-security/2012/01/20/16 http://www.openwall.com/lists/oss-security/2012/01/20/18 https://bugzilla.redhat.com/show_bug.cgi?id=783487 https://issues.asterisk.org/jira/browse/ASTERISK-19202 https://issues.asterisk.org/jira/secure/attachment/42202/issueA19202_crypto_if_uninited_text_or_video.patch